# Migrating to Serverless Development from Express

**URL:** <https://forum.serverless.com/t/migrating-to-serverless-development-from-express/10590>\
**Category:** Serverless Framework\
**Tags:** lambda, api-gateway\
**Created:** [February 16, 2020, 12:19pm UTC](https://forum.serverless.com/t/migrating-to-serverless-development-from-express/10590 "2020-02-16T12:19:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ObiKerui](https://avatars.discourse-cdn.com/v4/letter/o/b487fb/32.png) [@ObiKerui](https://forum.serverless.com/u/ObiKerui)\
**Post date:** [February 16, 2020, 12:19pm UTC](https://forum.serverless.com/t/migrating-to-serverless-development-from-express/10590/1 "2020-02-16T12:19:50Z")

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I have been using express with docker for my REST API and now I want to replace it with AWS Lambda and Serverless. When it comes to development, I looked at: **aws-sdk-mock** for unit testing with mocha and **serverless invoke local** for calling lambda functions. Before I deploy my Lambda functions to the cloud, however, I was wondering if it’s possible to run them in a docker container (in localhost) and make api calls from my front-end to that container? I saw the **serverless-offline** plugin which seemed like the solution I’m looking for but reading the [documentation](https://github.com/dherault/serverless-offline) I still need to use **serverless invoke** to call the functions? (I can’t just point my front-end api calls to the localhost).

I’m brand new to Serverless so I was wondering if more experienced users have solutions to this problem or have found better ways to develop and test their code before deploying it to the cloud?